Medium severity · published Oct 8, 2021
CVE-2021-42112
The "File upload question" functionality in LimeSurvey 3.x-LTS through 3.27.18 allows XSS in assets/scripts/modaldialog.js and assets/scripts/uploader.js
6.1
CVSS
1.5%
EPSS
No
On KEV
Description
The "File upload question" functionality in LimeSurvey 3.x-LTS through 3.27.18 allows XSS in assets/scripts/modaldialog.js and assets/scripts/uploader.js.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Limesurvey · Limesurvey
3.0.0 through 3.27.18 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-42112
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-42112
Permissions Required
https://bugs.limesurvey.org/view.php?id=17562
Patch
https://github.com/LimeSurvey/LimeSurvey/commit/d56619a50cfd191bbffd0adb660638a5e438070d
Exploit
https://www.on-x.com/sites/default/files/on-x_-_security_advisory_-_limesurvey_-_cve-2021-42112.pdf
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